The Peacekeeper edition is one of Agency Arms newest slide designs. It has two windows (one on each side) and a Tri-Top slide design with angled serrations. *Slide Serration count will change depending on the length of the slide. Includes Agency Optic System (AOS) cutout. Separate adapter plates needed for specific RDS mounting. These pre-cut slides will come stripped with a ISMI Recoil Spring Assembly and a Channel Liner installed. They have been machined from 17-4 Stainless Steel and have been refinished in Diamond Like Carbon (DLC) ""GLOCK A(R) ","Gen 3", "Gen 4", and "G17" - "G43" are several federallyregistered trademarks of many owned by Glock, Inc. or Glock Ges.m.b.H. Agency Arms isnot affiliated with or endorsed by Glock, Inc. or Glock Ges.m.b.H."